Clamps are a kind of staples that in dentistry are used as instruments of endodontics that serves to fasten the rubber dam to the dental piece to be able to prevent it from liquids like saliva or blood. They must be sterile in order to act effectively on the tooth. With four prongs and two jaws connected by a bow. Used also to retract gingival tissue, clamps are available in several sizes and shapes. Serrated jaws for lower left molars and partially erupted (and some) upper right

Tooth: 1-2-3-17-18-19